332
FZUS51 KBOX 260504
CWFBOX
COASTAL WATERS FORECAST FOR MASSACHUSETTS AND RHODE ISLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
103 AM EDT WED AUG 26 2026
COASTAL WATERS FROM THE MERRIMACK RIVER MA TO WATCH HILL RI OUT
TO 60 NM
ANZ200-261800-
103 AM EDT WED AUG 26 2026
SYNOPSIS FOR MASSACHUSETTS AND RHODE ISLAND COASTAL WATERS
HIGH PRESSURE REMAINS IN CONTROL THROUGH THURSDAY AFTERNOON WITH
WINDS GRADUALLY SHIFTING FROM THE SW TO THE W. A COLD FRONT
APPROACHES THE WATERS FROM THE W LATER THURS WITH SW WINDS POSSIBLY
INCREASING TO SCA CRITERIA AHEAD OF THE FRONT. FRONTAL PASSAGE LEADS
TO HIGH PRESSURE THIS WEEKEND.
ANZ250-261800-
COASTAL WATERS EAST OF IPSWICH BAY AND THE STELLWAGEN BANK
NATIONAL MARINE SANCTUARY-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SE 2 FT AT 6 SECONDS AND W 1 FOOT AT 3 SECONDS.
WED
NW WINDS 5 TO 10 KT, BECOMING SE IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND W 1 FOOT AT
3 SECONDS.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND E 1 FOOT AT 2 SECONDS.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 25 KT IN THE AFTERNOON. SEAS 2 TO 4 FT. WAVE DETAIL: SE
3 FT AT 4 SECONDS AND SE 3 FT AT 9 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
2 TO 4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND E 3 FT AT
9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 2 FT AT
4 SECONDS AND SE 2 FT AT 8 SECONDS. A CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT.
SAT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ251-261800-
MASSACHUSETTS BAY AND IPSWICH BAY-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: W 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 6 SECONDS.
WED
NW WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: E 2 FT AT 10 SECONDS AND W 1 FOOT AT
2 SECONDS.
WED NIGHT
S WINDS AROUND 10 KT, BECOMING SW AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: E 2 FT AT 10 SECONDS AND SE 1 FOOT
AT 3 SECONDS.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 9 SECONDS AND SE 2 FT AT 4 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 2 TO 3 FT. WAVE
DETAIL: SE 3 FT AT 4 SECONDS AND E 2 FT AT 9 SECONDS.
FRI
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 2 FT
AT 4 SECONDS AND E 2 FT AT 8 SECONDS. A CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS AROUND 2 FT.
SAT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ231-261800-
CAPE COD BAY-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
W WINDS AROUND 5 KT. SEAS 1 FOOT OR LESS. WAVE
DETAIL: W 1 FOOT AT 2 SECONDS AND E 1 FOOT AT 6 SECONDS.
WED
NW WINDS AROUND 5 KT, BECOMING E IN THE AFTERNOON. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. WAVE DETAIL:
NW 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 6 SECONDS.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: E
1 FOOT AT 3 SECONDS AND SW 1 FOOT AT 3 SECONDS.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
1 FOOT AT 2 SECONDS AND E 1 FOOT AT 3 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. SEAS AROUND 2 FT. WAVE
DETAIL: SE 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 11 SECONDS. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
S WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
1 FOOT AT 3 SECONDS AND E 1 FOOT AT 10 SECONDS. A CHANCE OF
SHOWERS.
FRI NIGHT
SW WINDS AROUND 5 KT, BECOMING NW AFTER MIDNIGHT.
SEAS AROUND 2 FT.
SAT THROUGH SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ254-261800-
COASTAL WATERS FROM PROVINCETOWN MA TO CHATHAM MA TO NANTUCKET MA
OUT 20 NM-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: W 2 FT AT 5 SECONDS AND SE 1 FOOT AT 6 SECONDS.
WED
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND NW 2 FT AT
5 SECONDS.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND E 1 FOOT AT 2 SECONDS.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND S 2 FT AT 4 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT. SEAS
AROUND 3 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 3 FT AT
9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT
5 SECONDS AND SE 3 FT AT 8 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 4 FT.
SAT AND SAT NIGHT
N WINDS 5 TO 10 KT, BECOMING S. SEAS 2 TO
4 FT.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO
15 KT WITH GUSTS UP TO 20 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ255-261800-
COASTAL WATERS EXTENDING OUT TO 25 NM SOUTH OF MARTHAS VINEYARD
AND NANTUCKET-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND SE 1 FOOT AT 6 SECONDS.
WED
W WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND SE 2 FT AT
10 SECONDS.
WED NIGHT
SW WINDS AROUND 5 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SE 3 FT AT 9 SECONDS AND SW 1 FOOT AT 5 SECONDS.
THU
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 8 SECONDS AND SW 2 FT AT 5 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW
3 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
FRI
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT
7 SECONDS AND E 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS IN THE
MORNING.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 5 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT, BECOMING SE 5 TO
10 KT. SEAS 2 TO 4 FT.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO
15 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ256-261800-
COASTAL WATERS FROM MONTAUK NY TO MARTHAS VINEYARD EXTENDING OUT
TO 20 NM SOUTH OF BLOCK ISLAND-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
NW WINDS AROUND 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: W 2 FT AT 5 SECONDS AND SE 1 FOOT AT 6 SECONDS.
WED
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: W 2 FT AT 4 SECONDS AND SE 2 FT AT
10 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND SW 2 FT AT 6 SECONDS.
THU
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 4 SECONDS AND
SE 3 FT AT 9 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SW
3 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
FRI
SW WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT
AT 7 SECONDS AND NE 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS IN
THE MORNING.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS AROUND 4 FT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT, BECOMING S 5 TO 10 KT.
SEAS 2 TO 4 FT.
SUN AND SUN NIGHT
SW WINDS 5 TO 10 KT, INCREASING TO 10 TO
15 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ232-261800-
NANTUCKET SOUND-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: W 1 FOOT AT 4 SECONDS AND E 1 FOOT AT 6 SECONDS.
WED
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: W 1 FOOT AT 3 SECONDS AND E 1 FOOT AT
6 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 1 FOOT AT 3 SECONDS AND E 1 FOOT AT 4 SECONDS.
THU
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS UP
TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: S 2 FT
AT 3 SECONDS AND E 1 FOOT AT 3 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 3 SECONDS AND
E 1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
S WINDS AROUND 10 KT. SEAS AROUND 2 FT. WAVE DETAIL: SE
2 FT AT 4 SECONDS AND E 1 FOOT AT 9 SECONDS. A CHANCE OF SHOWERS
IN THE MORNING.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 3 FT.
SAT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ233-261800-
VINEYARD SOUND-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND SE 1 FOOT AT 6 SECONDS.
WED
NW WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 1 FOOT AT 5 SECONDS AND SE 1 FOOT AT
6 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 1 FOOT AT 4 SECONDS AND E 1 FOOT AT 6 SECONDS.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS AROUND 2 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND NE 1 FOOT AT 2 SECONDS.
THU NIGHT AND FRI
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: S 3 FT AT 7 SECONDS AND E 2 FT AT 3 SECONDS. A CHANCE OF
SHOWERS.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT AT 7 SECONDS AND SE 2 FT AT
8 SECONDS.
SAT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ234-261800-
BUZZARDS BAY-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 1 FOOT AT 5 SECONDS AND SE 1 FOOT AT 7 SECONDS.
WED
NW WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON. WAVE DETAIL:
SW 1 FOOT AT 5 SECONDS AND SE 1 FOOT AT 7 SECONDS, BECOMING SW
1 FOOT AT 4 SECONDS AND E 1 FOOT AT 6 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE DETAIL:
SW 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 3 SECONDS AND E 2 FT AT 3 SECONDS.
THU NIGHT AND FRI
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: E 2 FT AT 3 SECONDS AND SW 2 FT AT
5 SECONDS. A CHANCE OF SHOWERS THROUGH THE DAY.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 6 SECONDS AND E 2 FT AT
8 SECONDS.
SAT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO
20 KT. SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ235-261800-
RHODE ISLAND SOUND-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND SE 1 FOOT AT 6 SECONDS.
WED
NW WINDS 5 TO 10 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SW 2 FT AT 5 SECONDS AND SE 2 FT AT
10 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
2 FT AT 4 SECONDS AND SE 2 FT AT 9 SECONDS.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 3 SECONDS AND S 2 FT AT 7 SECONDS.
THU NIGHT AND FRI
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND SE 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. SEAS 2 TO 4 FT. WAVE DETAIL: S 4 FT AT 7 SECONDS AND SE
1 FOOT AT 3 SECONDS.
SAT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ237-261800-
BLOCK ISLAND SOUND-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
NW WINDS 5 TO 10 KT. SEAS AROUND 2 FT. WAVE
DETAIL: W 1 FOOT AT 4 SECONDS AND SE 1 FOOT AT 6 SECONDS.
WED
NW WINDS AROUND 5 KT, BECOMING SW IN THE AFTERNOON. SEAS
AROUND 2 FT. WAVE DETAIL: SE 2 FT AT 10 SECONDS AND W 1 FOOT AT
4 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 9 SECONDS AND SW 1 FOOT AT 5 SECONDS.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: SE
2 FT AT 3 SECONDS AND S 2 FT AT 6 SECONDS.
THU NIGHT AND FRI
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 5 SECONDS AND SE 2 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
SEAS 2 TO 3 FT. WAVE DETAIL: S 3 FT AT 7 SECONDS AND SE 1 FOOT AT
3 SECONDS.
SAT THROUGH SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ230-261800-
BOSTON HARBOR-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS.
WED
NW WINDS AROUND 5 KT, BECOMING SE IN THE AFTERNOON. WAVES
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON.
WED NIGHT
S WINDS 5 TO 10 KT, BECOMING SW AFTER MIDNIGHT.
WAVES 1 FOOT OR LESS.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. WAVES 1 FOOT OR LESS, THEN AROUND
2 FT IN THE AFTERNOON.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
DIMINISHING TO 5 TO 10 KT AFTER MIDNIGHT. WAVES AROUND 2 FT IN
THE EVENING, THEN 1 FOOT OR LESS.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FOOT OR LESS. A
CHANCE OF SHOWERS.
SAT THROUGH SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ236-261800-
NARRAGANSETT BAY-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
NW WINDS AROUND 5 KT. WAVES AROUND 2 FT.
WED
NW WINDS AROUND 5 KT, BECOMING S IN THE AFTERNOON. WAVES
1 FOOT OR LESS, THEN AROUND 2 FT IN THE AFTERNOON.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES AROUND 2 FT.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
THU NIGHT AND FRI
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
WAVES AROUND 2 FT. A CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW AFTER MIDNIGHT.
WAVES AROUND 2 FT.
SAT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT. WAVES AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ280-261800-
OCEAN WATERS FROM THE MERRIMACK RIVER TO PLYMOUTH FROM 40 TO
60 NM-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
NW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE
DETAIL: W 2 FT AT 5 SECONDS AND SE 2 FT AT 11 SECONDS.
WED
NW WINDS 5 TO 10 KT, BECOMING W IN THE AFTERNOON. SEAS
2 TO 3 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND W 2 FT AT
4 SECONDS.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL:
SE 3 FT AT 9 SECONDS AND E 1 FOOT AT 2 SECONDS.
THU
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 4 SECONDS AND SE 3 FT AT
9 SECONDS.
THU NIGHT AND FRI
S WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 3 TO 4 FT. WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 3 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING NW 10 TO 15 KT WITH
GUSTS UP TO 20 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
4 FT AT 8 SECONDS AND S 2 FT AT 5 SECONDS.
SAT AND SAT NIGHT
N WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT,
BECOMING SW 5 TO 10 KT. SEAS 2 TO 4 FT.
SUN AND SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP TO 25 KT.
SEAS 2 TO 3 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ281-261800-
OCEAN WATERS FROM PROVINCETOWN TO NANTUCKET FROM 20 TO 60 NM-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
W WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE
DETAIL: SW 2 FT AT 5 SECONDS AND SE 2 FT AT 10 SECONDS.
WED
W WINDS 5 TO 10 KT, DIMINISHING TO AROUND 5 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND
W 2 FT AT 5 SECONDS.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND SW 1 FOOT AT 4 SECONDS. PATCHY FOG AFTER
MIDNIGHT WITH VSBY 1 NM OR LESS.
THU
S WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH GUSTS
UP TO 20 KT IN THE AFTERNOON. SEAS AROUND 3 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND SW 2 FT AT 6 SECONDS.
THU NIGHT AND FRI
S WINDS 10 TO 15 KT WITH GUSTS UP TO 20 KT.
SEAS 3 TO 5 FT. WAVE DETAIL: S 4 FT AT 5 SECONDS AND SE 3 FT AT
9 SECONDS. A CHANCE OF SHOWERS.
FRI NIGHT
SW WINDS 5 TO 10 KT, BECOMING W WITH GUSTS UP TO
20 KT AFTER MIDNIGHT. SEAS 4 TO 6 FT. WAVE DETAIL: S 5 FT AT
7 SECONDS.
SAT
N WINDS 5 TO 10 KT WITH GUSTS UP TO 20 KT. SEAS 3 TO 5 FT.
SAT NIGHT THROUGH SUN NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS UP
TO 20 KT. SEAS 2 TO 4 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ282-261800-
OCEAN WATERS FROM MARTHAS VINEYARD TO NANTUCKET FROM 25 TO 60 NM-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
W WINDS AROUND 10 KT. SEAS AROUND 3 FT. WAVE
DETAIL: W 3 FT AT 5 SECONDS AND SE 2 FT AT 10 SECONDS.
WED
W WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT
AT 9 SECONDS AND W 2 FT AT 5 SECONDS.
WED NIGHT
SW WINDS AROUND 5 KT. SEAS 3 TO 4 FT. WAVE DETAIL:
SE 3 FT AT 9 SECONDS AND SW 1 FOOT AT 6 SECONDS.
THU
SW WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL: SE
3 FT AT 9 SECONDS AND SW 2 FT AT 6 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 5 FT. WAVE DETAIL: SW
4 FT AT 5 SECONDS AND SE 3 FT AT 9 SECONDS. A CHANCE OF SHOWERS
IN THE EVENING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS AFTER
MIDNIGHT.
FRI
SW WINDS 5 TO 10 KT. SEAS 4 TO 6 FT. WAVE DETAIL: S 6 FT
AT 7 SECONDS AND SE 3 FT AT 8 SECONDS. SHOWERS LIKELY IN THE
MORNING.
FRI NIGHT
W WINDS 5 TO 10 KT. SEAS 4 TO 6 FT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
SAT
N WINDS 5 TO 10 KT. SEAS 3 TO 5 FT.
SAT NIGHT THROUGH SUN NIGHT
SW WINDS 5 TO 10 KT. SEAS 2 TO
3 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
ANZ283-261800-
OCEAN WATERS FROM MONTAUK NY TO MARTHAS VINEYARD FROM 25 TO 60 NM-
103 AM EDT WED AUG 26 2026
REST OF TONIGHT
W WINDS AROUND 10 KT. SEAS AROUND 3 FT. WAVE
DETAIL: W 3 FT AT 5 SECONDS AND SE 2 FT AT 10 SECONDS.
WED
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SE 3 FT
AT 9 SECONDS AND W 2 FT AT 4 SECONDS.
WED NIGHT
SW WINDS 5 TO 10 KT. SEAS AROUND 3 FT. WAVE DETAIL:
SE 3 FT AT 9 SECONDS AND SW 1 FOOT AT 6 SECONDS.
THU
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: SE 3 FT AT 9 SECONDS AND
SW 2 FT AT 4 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE
EVENING. SEAS 4 TO 5 FT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE
3 FT AT 9 SECONDS. A CHANCE OF SHOWERS.
FRI AND FRI NIGHT
NW WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE
DETAIL: S 5 FT AT 7 SECONDS AND SE 4 FT AT 8 SECONDS. A CHANCE OF
SHOWERS IN THE MORNING. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SAT AND SAT NIGHT
NE WINDS 10 TO 15 KT, BECOMING E 5 TO 10 KT.
SEAS 2 TO 4 FT.
SUN AND SUN NIGHT
S WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT.
SEAS AROUND 2 FT.
SEAS ARE REPORTED AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE
AVERAGE OF THE HIGHEST THIRD OF THE WAVES. INDIVIDUAL WAVE
HEIGHTS MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
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